As an expert in birdwatching and bird feeding, I can provide you with some guidance on when to stop feeding hummingbirds in Vermont. In general, it is recommended to keep your hummingbird feeders up until at least October 1st.
By this time, most hummingbirds have already begun their migration journey to warmer climates in Central America or Mexico. However, there may still be some stragglers or late-migrating birds that could benefit from having access to your nectar.
It’s important to note that hummingbirds rely heavily on nectar as a food source, especially during their long migration flights. By keeping your feeders up until October 1st, you are providing a valuable resource for these birds during a critical time.
I understand that in some cases, the weather may start to get colder in Vermont by October 1st. However, hummingbirds have the ability to withstand chilly temperatures, as long as they have access to food sources. In fact, they have been known to linger in northern areas for longer periods if there is still a food supply available.
In my personal experience, I have observed hummingbirds visiting feeders well into October. I remember one year when I had a late-migrating Ruby-throated Hummingbird visit my feeder in mid-October. It was a delightful surprise to see this tiny bird fueling up before continuing its journey.
To ensure the well-being of any late-migrating hummingbirds, it is crucial to maintain clean and fresh nectar in your feeders. The nectar should be replaced every 3-4 days, especially during warmer weather, to prevent fermentation and the growth of harmful bacteria. Additionally, clean your feeders regularly to prevent the spread of diseases.
It’s worth mentioning that some hummingbird species, such as the Rufous Hummingbird, have been known to overwinter in Vermont. These hardy birds can withstand the cold temperatures and rely on feeders as a supplemental food source during the winter months. If you have observed Rufous Hummingbirds in your area, you may consider leaving your feeders up throughout the winter to support these remarkable birds.
I would recommend keeping your hummingbird feeders up until at least October 1st in Vermont. This will ensure that any late-migrating or overwintering hummingbirds have access to nectar during this critical time. Remember to maintain clean and fresh nectar in your feeders to support the well-being of these amazing birds.